Multi JavaScript minimizer and formatter

Since it is your JavaScript you are responsible for correct function of the minimized code too. In few cases minimized code may behave unexpected.

Step 1 Select the minimizing engine.

The babel engine can minimize and rewrite modern class-based JavaScript, shows detailed error messages, converts non-ASCII characters into unicode escapes. The minimized code usually runs on most current browsers. Tested with:

Step 2 Select input by (optional) choosing the encoding and a JavaScript (.js) file. Charset selection is only needed if the file contains non-ASCII characters (UTF8 is a superset of ASCII). Windows users may find the default charset by opening the PowerShell, input [System.Text.Encoding]::Default and look for the value of WebName. Alternatively encode non-ASCII characters like e.g. \u20AC for the euro sign. JavaScript can also be pasted manually from clipboard (click into text area, then [Ctrl]+[V]).

Step 3 Start the minimizer. Please allow some seconds of delay. The result will appear in the text area below.

Step 4 Copy the content of the text area into clipboard for your use. This can be also done manually by clicking into the text area, then press [Ctrl]+[A], then [Ctrl]+[C].

Step 5 Addendum: Using the apache webserver the following code, in a .htaccess file, is one way to automatically serve [scriptfile].min.js if available and falls back to serve [scriptfile].js if not (tested with apache 2.4):